Ichthyofaunal Diversification and Distribution in Jane\u27s Creek Watershed, Randolph County, Arkansas

The purposes of this study were to determine the qualitative and quantitative distribution of fishes in the Jane\u27s Creek watershed. Jane\u27s Creek is a clear, spring-fed Ozark stream in northeastern Arkansas. A knowledge of the ichthyofauna of this stream prior to a long-range impoundment is of significance to the natural history of Arkansas. Jane\u27s Creek and its tributaries were found to be alkaline, with no measurable turbidity, and to have low levels of carbon dioxide. Dissolved oxygen values ranged from 6.1 to 16.0 ppm. Only slight differences in physicochemical conditions were noted among stations and between pool and riffle areas at each station. A total of 52 species of fishes were collected during this study. Most fishes were collected by seining. A rotenone sample on 10 July 1972 yielded a standing crop of 3,005 specimens and 392 kg/ha (2,681 specimens and 349 lb/A),minnows and darters excluded. Except for black-spot disease (Apophallus sp.) on some cyprinids, the fishes generally appeared robust. The large number of fish species collected during the sampling period reflected the diversity of habitats available. These observations indicated a healthy ichthyofaunal population inhabiting a stream system receiving little if any pollution

Treatment of hemorrhoids: A survey of surgical practice in Australia and New Zealand

Hemorrhoidal disease is the most common anorectal disorder. Hemorrhoids can be classified as external or internal, according to their relation to the dentate line. External hemorrhoids originate below the dentate line and are managed conservatively unless the patient cannot keep the perianal region clean, or they cause significant discomfort. Internal hemorrhoids originate above the dentate line and can be managed according to the graded degree of prolapse, as described by Goligher. Generally, low-grade internal hemorrhoids are effectively treated conservatively, by non-operative measures, while high-grade internal hemorrhoids warrant procedural intervention.This article is freely available via Open Access. Click on Publisher URL to access the full-text

State of the University Libraries, 2015

Powerpoint presentation for the first State of the University Libraries address on August 21, 2015

State of the University Libraries, 2019

Video of Libraries Accomplishments for 2019 displayed at the 2019 State of the University Libraries address. Powerpoint of the presentation by George Fowler, University Librarian is available for download. Dr. Fowler\u27s speech is available as an additional file

The Essence of the Library at a Public Research University as Seen Through Key Constituents’ Lived Experiences

“The library is the heart of the university” is an oft-repeated metaphor used to describe the role or centrality of the library. The implication is that the library is central to the university’s teaching, research, and service mission. This concept, though previously generally accepted without authoritative proof, is facing numerous challenges to its validity. There has been considerable research and talk about how to make the library central, again. Much has been focused on what to do, rather than why. As John Budd stated in 1995, “grounded study of the use of libraries, say, or of the transmission of information is impossible without an understanding of what underlies the act of using a library or of transmitting information… without an understanding of the ontological purpose of the library—its essence or being—the empirical study of its function as an organization lacks a fundamental context. By ontology of the library I mean the core of the library\u27s being, the reason for the library\u27s existence” (pp. 305-306). Through this transcendental phenomenological study, the researcher is proposing an ontological purpose of the library at a public research university from the perspectives of representatives of its nine key constituencies–chief executive officer, chief academic officer, chief research officer, chief student affairs officer, library director, faculty, graduate students, and undergraduate students

State of the University Libraries, 2016

PDF of powerpoint presentation for the State of the University Libraries address on August 31, 2016

Measuring suspended sediment characteristics to identify accurate monitoring techniques in stormwater runoff

This research examined several methods for monitoring suspended sediment concentration and particle size in stormwater runoff. Suspended sediment concentration was monitored using the following methods: automatic sampling reported as Suspended Sediment Concentration (SSC), automatic sampling reported as Total Suspended Solids (TSS), turbidity reported as SSC and turbidity reported as TSS. Particle size distribution (PSD) was measured in samples from automatic samplers using tri-laser diffraction. An entire volume of the discharge passing by the automatic samplers and turbidity meter was captured and presumably contained the actual values to which all other methodologies were compared. Automatic sampling with SSC proved to be the most accurate in representing the actual suspended sediment concentration. The TSS method\u27s accuracy suffered during events with high discharge rates. Turbidity was not found to be an accurate measure to represent suspended sediment concentration. Automatic samplers collected samples containing sand size sediments but did not have a representative PSD

State of the University Libraries, 2018: A Crossroads Community

PDF of powerpoint presentation for the Old Dominion University State of the University Libraries address on August 23, 2018

The bandmerged Planck Early Release Compact Source Catalogue: Probing sub-structure in the molecular gas at high Galactic latitude

The Planck Early Release Compact Source Catalogue (ERCSC) includes nine lists of highly reliable sources, individually extracted at each of the nine Planck frequency channels. To facilitate the study of the Planck sources, especially their spectral behaviour across the radio/infrared frequencies, we provide a "bandmerged" catalogue of the ERCSC sources. This catalogue consists of 15191 entries, with 79 sources detected in all nine frequency channels of Planck and 6818 sources detected in only one channel. We describe the bandmerging algorithm, including the various steps used to disentangle sources in confused regions. The multi-frequency matching allows us to develop spectral energy distributions of sources between 30 and 857 GHz, in particular across the 100 GHz band, where the energetically important CO J=1->0 line enters the Planck bandpass. We find ~3-5sigma evidence for contribution to the 100 GHz intensity from foreground CO along the line of sight to 147 sources with |b|>30 deg. The median excess contribution is 4.5+/-0.9 percent of their measured 100 GHz flux density which cannot be explained by calibration or beam uncertainties. This translates to 0.5+/-0.1 K km s^{-1} of CO which must be clumped on the scale of the Planck 100 GHz beam, i.e., ~10 arcmin. If this is due to a population of low mass (~15 Msun) molecular gas clumps, the total mass in these clumps may be more than 2000 Msun. Further, high-spatial-resolution, ground-based observations of the high-latitude sky will help shed light on the origin of this diffuse, clumpy CO emission.Comment: 15 pages, 15 figures, MNRAS in pres